Tools/Scripts/update-webkit-chromium

#!/usr/bin/perl -w
# Copyright (C) 2009 Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
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# are met:
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# 2.  Redistributions in binary form must reproduce the above copyright
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#     its contributors may be used to endorse or promote products derived
#     from this software without specific prior written permission. 
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# Update script for the WebKit Chromium Port.

use File::Path;
use FindBin;
use Getopt::Long;
use lib $FindBin::Bin;
use webkitdirs;

determineIsChromiumAndroid();

chdirWebKit();
chdir("Source/WebKit/chromium") or die $!;

# Find gclient or install it.
my $gclientPath;
if (commandExists('gclient')) {
    $gclientPath = 'gclient';
} elsif (-e 'depot_tools/gclient') {
    $gclientPath = 'depot_tools/gclient';
} else {
    print "Installing chromium's depot_tools...\n";
    system("svn co http://src.chromium.org/svn/trunk/tools/depot_tools") == 0 or die $1;
    $gclientPath = 'depot_tools/gclient';
}

if (! -e ".gclient") {
    # If .gclient configuration file doesn't exist, create it.
    print "Configuring gclient...\n";
    system($gclientPath,
           "config",
           "--spec=solutions=[{'name':'./','url':None}]") == 0 or die $!;
}

# When building Chromium for Android, the envsetup.sh script needs to be
# executed prior to project file generation. We need to tell gyp_webkit to do
# that, as it's a Chromium file and may not be available yet right now.
if (isChromiumAndroid()) {
    $ENV{WEBKIT_ANDROID_BUILD} = 1;
}

my $force = 0;
my $useNinja = 1;

GetOptions(
  'force' => \$force,
  'ninja!' => \$useNinja,
);

if ($useNinja) {
    $ENV{"GYP_GENERATORS"} = "ninja";
}

# Execute gclient sync.
print "Updating chromium port dependencies using gclient...\n";
my @gclientArgs = ($gclientPath, "sync");
push @gclientArgs, "--force" if $force;
# --reset could delete modified files if necessary to sync.
push @gclientArgs, "--reset" if $force;
push @gclientArgs, "--delete_unversioned_trees" if $force;
push @gclientArgs, "--deps=unix,android" if isChromiumAndroid();

my $cmd = join(" ",@gclientArgs);
my $max_attempts = 3;
my $rc = -1;

# The following will call glient up to $max_attempts times before
# it gives up and fails.  We need this because glcient can fail
# for several reasons, some of which are transient (flakiness).

for (1 .. $max_attempts) {
    $rc = system($cmd);
    print "Re-trying '" . $cmd . "'\n" if $rc != 0;
    last if $rc == 0;
}

die "Error: '$cmd' failed $max_attempts tries and returned " . $rc if ($rc);